package com.atguigu.gulimall.order.web;

import com.atguigu.common.exception.NoStockException;
import com.atguigu.gulimall.order.service.OrderService;
import com.atguigu.gulimall.order.vo.OrderConfirmVo;
import com.atguigu.gulimall.order.vo.OrderSubmitVo;
import com.atguigu.gulimall.order.vo.SubmitOrderResponseVo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

import javax.servlet.http.HttpServletRequest;
import java.util.concurrent.ExecutionException;

@Controller
public class OrderWebController {

    @Autowired
    OrderService orderService;

    @GetMapping("/toTrade")
    public String toTrade(Model model, HttpServletRequest request) throws ExecutionException, InterruptedException {
        OrderConfirmVo confirmVo=orderService.confirmOrder();
        model.addAttribute("orderConfirmData",confirmVo);
        return "confirm";
    }

    @PostMapping("/submitOrder")
    public String submitOrder(OrderSubmitVo vo, Model model, RedirectAttributes redirectAttributes){
        try {
            SubmitOrderResponseVo responseVo=orderService.submitOrder(vo);
            if (responseVo.getCode()==0){
                //下单页
                model.addAttribute("submitOrderResp",responseVo);
                return "pay";
            }else {
                String msg="下单失败";
                switch (responseVo.getCode()){
                    case 1: msg+="订单信息过期，请刷新再次提交";break;
                    case 2: msg+="订单商品价格发生变化，请确认后再次提交";break;
                    case 3: msg+="库存锁定失败，商品库存不足";break;
                }
                redirectAttributes.addFlashAttribute("msg",msg);
                //结算页
                return "redirect:http://order.gulimall.com/toTrade";
            }
        } catch (Exception e) {
            if (e instanceof NoStockException) {
                String message = ((NoStockException)e).getMessage();
                redirectAttributes.addFlashAttribute("msg",message);
            }
            return "redirect:http://order.gulimall.com/toTrade";
        }
    }
}
